Dbc Agricultural Prdts 018621 First Arrival Targeted Feed Supplement for Calf 4000G Pail Intended to prevent control and abate pathogenic organisms while a newborn calf's immune system is still developing Targets 90 percent of the pathogens that cause scours and Malnutrition Contains micro-encapsulated bacteria to aid in recolonization after pathogens have been Destroyed All-Natural ingredients Easy to digest